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Calibration curve and content of acteoside.
| Compound | tR a | Calibration Equation b | Correlation Factor, r2 c | Content (mg/g Extract) | |
|---|---|---|---|---|---|
| Leaves | Stems | ||||
| Acteoside | 19.26 | Y = 34,674X − 50,661 | 0.999 | 162.11 ± 0.63 | 29.68 ± 0.60 |
a tR = retention time.b Y = peak area, X = concentration of standard (mg/mL).c r2 = correlation coefficient for three data points in the calibration curve.
